I have been tracking my period and since January it has averaged out to be 33 days but it's not always this, the longest has been 35 and shortest has been 29. I'm currently on cycle day 41 and have taken two pregnancy tests and they have both been negative. Just wondering should I go to the doctors about this and what would they be able to do? I'm not sure if I am pregnant but don't know why I'm so late? Any advice would be great. Thanks